metallographic microscope is a high-power optical microscope with a magnification of up to 2000 times, but even if high-end equipment is used for a long time, some failures will occur.
metallographic microscope is a high-power optical microscope with a magnification of up to 2000 times, but even if high-end equipment is used for a long time, some failures will occur. So how to eliminate them? Today to introduce metallographic microscope mechanical troubleshooting methods:
1. Troubleshooting of fine-tuning faults The common faults are jamming and failure
the fine-tuning part is installed inside the instrument, the small part of the machine, the compact microscope is the fine and complex part. Fine-tuning some of the fault should be professional technicians to repair the microscope. In this way, the more serious consequences of the microscope can be avoided.
2. Troubleshooting of rough adjustment part
unless it is an important failure tightness is automatically rejected or down. The so-called automatic device drops the barrel, or the stage mirror armrest in a certain position, without adjustment, under the action of its own weight, the phenomenon of automatic gradual decline. The reason is that the lens barrel, the gravity mirror arm, and the stage itself are larger than those caused by static friction. The solution is to increase the static friction to be larger than the gravity or the arm itself of the barrel. For most tilt cylinders and the coarse motion automatically descends when the mirror arm, the gripping hand can be used to stop the binocular microscope slide by adjusting the internal coarse adjustment handwheel pulley mechanism, which is tightened clockwise by the hand force to stop the descent. If no special maintenance is required.
In addition, the automatic sliding of the lens barrel often gives the illusion that the gear and rack are caused by improper cooperation. So we put the gasket under the shelf. In this way, although the sliding of the lens barrel can be temporarily stopped, the gear and the rack are in an abnormally blocked state. Due to the movement, the gear and rack are deformed. Especially when the cushion is not normal, the frame deformation is more serious. As a result, part of the racks are bitten tightly and part of the racks are bitten loosely. Therefore, this method should not be used. Another reason is that the coarse adjustment mechanism is not repaired for a long time and the lubricating oil is dry. When it rises and falls, it will produce an uncomfortable feeling, and even the friction sound of mechanical parts can be heard. At this point, the mechanism can be disassembled and cleaned, lubricated and reassembled.
3. The troubleshooting of the objective lens converter of the metallographic display lens. Under normal circumstances, the failure of the objective lens converter is the failure of the positioning device.
It is usually caused by damage to the positioning spring (deformation, fracture, loss of elasticity, loosening of the fixing screws of the spring, etc.) When replacing a new spring, do not tighten the fixing screw. After the shaft is closed, tighten the screw. If it is an internal positioning converter, the large head screw in the center of the rotating disc should be rotated, and the rotating disc should be removed before the positioning spring can be replaced. The correction method of the optical axis is the same as the previous method, and the operation can be careful.
